The main allergic food is animal protein food 1, and the most susceptible foods are fish, shrimp, crab, milk, cream products and eggs. 2, followed by plant foods, such as bamboo shoots, spinach, mushrooms, shiitake mushrooms, eggplant, broad beans, cucumbers, garlic, onions, oranges, plums, strawberries, and nuts such as chestnuts, ginkgo, walnuts, peanut butter and aromatic seasonings; 3. In addition, some foods can cause some people's allergies, such as wine, chocolate and acrolein (a substance produced when digesting fat and eating fried things), as well as pigments, condiments and preservatives added to foods, natural or synthetic substances in foods such as yeast, salicylic acid and citric acid, and foods added with mint such as mints, mint cigarettes or pastry foods. Generally speaking, the things that urticaria can't eat are: food protein, preservatives, condiments, pigment additives and so on. Among them, the food includes: fish, shrimp, crab, shellfish, chicken, duck, goose, beef, horse meat, dog meat, rabbit meat, bamboo shoots, garlic sprouts, celery, lettuce, spinach, eggplant, tomato, lemon, mango and so on. Parents should pay attention to the above food when cooking for their children. The common allergens of urticaria in children are mainly caused by allergic reactions, which mostly occur in children with allergic constitution. They often have urticaria after eating allergic foods such as fish, shrimp, crab, eggs and beef. Plant foods such as strawberries, cocoa, tomatoes and garlic can also become allergens, and food additives such as condiments, pigments and preservatives can also cause allergies. In addition, decomposed peptides and basic peptides in food, such as stinky tofu, rotten eggs, spoiled fruits, etc. Or protein in food is not well digested and absorbed, and enters the blood in the form of peptide or peptone, which is easy to cause allergic reaction. Hair, dander, pollen, gasoline, dust and even fungal spores of some animals are often the causes of allergies. A few patients are also related to medication, such as penicillin, serum products, vaccines and sulfonamides. Some patients are related to the infection of streptococcus, tuberculosis and hepatitis virus in the body, or allergic reactions caused by connective tissue diseases (such as lupus erythematosus), vasculitis and tumors. It can not be ignored that insect bite is also the cause of its occurrence. Children with urticaria should pay attention to several principles in daily nursed back to health: eat more fresh fruits and vegetables rich in vitamins or take vitamins C and B, or B6 in group B6..2. Eat more alkaline foods, such as grapes, green tea, kelp, tomatoes, sesame, cucumber, carrots, bananas, apples, oranges, radishes, mung beans, coix seed, etc. 3. Don't eat animal protein food and seafood, don't eat spicy food, don't drink, and keep a light diet. 4, rest more, don't be tired, exercise moderately. Avoid food and hair care products containing artificial additives. This is convenient for treatment and avoids repeated attacks.